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Cellular Networks
 
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Course Number1404
Price NIS before VAT2120
Duration (Days)2
LanguageEnglish/Hebrew
LevelIntermediate
JanFebMarAprMayJun
 26-27     
 
JulAugSepOctNovDec
23-24     21-22
+972 3 9247780 ext. 3
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Available training formats
 

The Unwired World of GSM/GPRS, UMTS & CDMA
 This comprehensive seminar goes through the Architecture and Procedures of a Modern Cellular Network. It covers RF Access aspects, as well as the Circuit & Packet Core Network aspects, and Value-Added-Services. A Leading Motive of the seminar is comparing between TDMA, GSM/GPRS, and CDMA2000 1X & UMTS technologies – specifying the similarities, the differences, and the meaning of the evolution.  Examples for such topics include frequency reuse in GSM, detailed IS95 end-to-end example, call delivery & handoffs in IS41 versus MAP networks, GPRS/UMTS versus 1X network structure, UMTS evolution phases and much more.
 
 
  1. Cellular Evolution
  • Cellular evolution along the years
  • 1G, 2G, 2.5G & 3G technologies evolution paths & main technologies.
  • Cellular “buzzwords” – protocols, standards, multiple-access techniques, generations, etc.
  • 3G challenges
  • UMTS path versus CDMA2000 path – technologies, advantages & disadvantages.
  • Main network subsystems
  • Core vs. Access protocols
  1. The Wireless Access Network
  • Dividing the area into cells
  • Base Station components
  • Control & Traffic Channels - examples from IS95, CDMA2000, GSM & UMTS
  • BTS typical characteristics (power, coverage, capacity)
  • Global frequency allocation
  • Frequency reuse in Time Division based networks (e.g. GSM)
  • Frequency reuse in CDMA networks.
  • Common cell types – Omni, Sectored, Tiered “breathing”, Micro cell
  1. Traffic Handling in the RF Channel
  • Typical Radio chain
  • Source encode- Vocoder vs PCM
  • Channel encode –Error Protection (CRC, Convolutional coding, Interleaving)
  • Channel modulation – Analogue (AM, FM) vs. Digital (QPSK/O-QPSK, 8PSK, QAM)
  • Channel multiplexing - FDMA, TDMA & CDMA - channel structure in three-dimensional space
  • CDMA Orthogonal Codes – detailed calculation example of spreading & dispreading
  • Orthogonality between Cells - IS95 CDMA versus UMTS
  • CDMA end-to-end traffic channel example
  1. Connecting the Base Stations to a Cellular Switch
  • Connecting to the MSC
  • Switch Roles – Wireline vs. MSC (HLR & VLR, call routing, call switching, billing recording, the “Anchor” switch concept)
  • The Base Station Subsystem Architecture – BSC, PCU & TRAU (GSM vs. CDMA)
  • IWF concept
  • TRAU concept – voice vs. data call.
  • Switch Architecture Block Diagram
  1. Cellular Networks Architecture
  • The Cellular Network 4-level model.
  • The Calls Level
  • The Call-Setup level - why, how, CAS vs CCS. STP and Signaling links, ISUP msg flow example.
  • SS#7 concept (with a reference to OSI-7 layers)- MTP level, the various applications, the role of TCAP & SCCP, Global Title Translation & Subsystem Numbering.
  • Mobility management (MAP and IS41 networks) within the network and between networks – HLR, VLR, AuC & EIR roles
  • The value added services (& network management) tier - SMS, VMS & IN.
  • HLR & VLR roles & content per subscriber. (MAP vs IS41 networks)
  • Authentication / Real-time Fraud Prevention and Voice Encryption- the GSM case.
  
  1. Mobile Station Numbering (in the GSM-MAP world)
  • Distinguish between mobile equipment and user identity.
  • SIM main content.
  • Fixed numbering – MSISDN, IMSI & IMEI
  • Temporary numbering – TMSI, MSRN & HORN
  • E-164 versus E-212 formatting.
  1. Cellular Processes
  • Registration & location update
  • HLR-VLR interaction using GTT (E212-E214 addressing model)
  • Call origination
  • Mobile paging
  • Registration / Paging Balance Conflict – The LA concept
  • Call reception
  • Roaming – how, what prerequisites, comparing between technologies.
  • Authentication and Data Encryption across networks/operators
  • Call delivery to a distant switch/network (using GMSC & temporary TLDN/MSRN)
  • SMS Delivery
  • Call continuation through handoff / handover in the RF and switching levels- including the Anchor switch concept.
     
  1. Adding the Packet Data branch to the network (“2.5G”)
  • The evolving demand for data and value-added services
  • Packet vs. Circuit Switching - The operators’ conflicts
  • Cellular Data Services Development – All new services and capabilities in brief.
  • GPRS vs CDMA2000 1X capabilities.
  • Adding a GPRS branch to a GSM network.
  • Adding a packet data branch to a CDMA-1X network.
  • Example: GPRS integration with the operator’s LAN.
  • GPRS subscriber states.
  • GPRS main procedures.
     
  1. Evolving the Network Architecture to 3G
  • 3G standardization bodies & main technologies
  • CDMA2000 EVDO main characteristics
  • UMTS Release 99 architecture
  • UTRAN architecture & main elements.
  • UMTS Release 4 architecture
  • MSC switch versus Call Server & Media Gateway
  • UMTS Release 5 architecture – IP Multimedia Subsystem
  • SIP (Session Initiation Protocol) – IETF vs. 3GPP, architecture and basic message flows, IMS building blocks
  1. Conclusion
  2. Glossary
 
  • This seminar provides a comprehensive view of the modern cellular telecommunication world and is oriented to any technical person involved in the Telecommunication field – either as a service provider, value-added services developer, regulator and more.
  • None